Air silencer 3.5 eco boost

[jeff kushner]

Jeff, In your opinion, any gain other than sound from removing them?

IMHO, J is correct.....more sound only(not counting very misc increases) but since pressure remains constant in a vessel, there wouldn't be any increase in performance since the pressure raised by the impeller(intake side) would remain the same regardless of any sound suppressors which are really designed to "break-up" the flow of the air column to reduce the sound generated by fast moving air....once air exceeds around 4ft per sec, it begins to get pretty noisy!!

jeff

 

[jeff kushner]

I agree 07.....each of us bought and paid for their truck....so do as you wish!


FWIW:

The trick to increasing power in a pressurized engine though, is usually done via changing the speed of the supercharger drive or by raising the allowed boost for a Turbo system. The reason being that the manufacturer has already modified for the increased loads generated by turbos/supers and doing the "old school" mods like raising compression would have devastating effects on a turbo or super'ed engine at full boost....

In my Kompressor(Supercharged) car, I changed out the crank pulley to the largest that would fit and still allow the toothed supercharger belt to work. It raised the boost from approx 8psi to 11-12psi which translated to around 25BHP for 800 bucks or so....cheap HP for a car at around 30 bucks per BHP.

jeff

 

[rjdelp7]

Owners of early 90's 5.0l Mustangs, all removed the air silencers. Basically, at wide open throttle, you get a "whoomm" sound and 2-3 horsepower. However, turbos can produce an annoying, "whoosh" sound. Either way it will not hurt anything, testing it, without it.

 

[jdeshong]

Owners of early 90's 5.0l Mustangs, all removed the air silencers. Basically, at wide open throttle, you get a "whoomm" sound and 2-3 horsepower. However, turbos can produce an annoying, "whoosh" sound. Either way it will not hurt anything, testing it, without it.

The sound of spooling turbos is music to my ears so im definitly taking mine out if it helps to hear them more.

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[J Ski]

I’m taking the bold chance of wasting $450, ordering the aFe Stage 2 with the lid for a 14 F150, and praying that I’m right about the intake plumbing on these trucks being the same other than the airbox and the connector tube.

Update on this intake. The factory intake housing on our trucks has the clips that hold the top down on the left if you are looking at it straight on (three 0f them) and the inserts on the right. aFe stage two for the F150 has a different style OEM intake box where the clips are in the front of the box and the inserts are on the back. Gonna have some serious fabrication going on there if you plan to still run it

 

[J_82]

The sound of spooling turbos is music to my ears so im definitly taking mine out if it helps to hear them more.

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Did you take them off?

 

[Kwik SC]

Hey guys, stumbled upon this thread in my quest about removing the silencers and thought id share some input. I recently did a K&N drop in filter, turbo adapters, plugs, tstat and a tune on the truck. To say it sounds like a completely different truck is an understatement. Factory stock when driving around so no one in the family can ***** about noise and when you get on it, it sounds.. angry. There's no other word to describe it. The turbos howl since its running 20 psi now and the adapters act like the manifolds are ported. Going to pull the silencers out of this as well and I think the truck needs absolutely nothing else to be done to it. Perfect daily grocery getter.

 

[J Ski]

What’s ur gas mileage

 

[sixsix]

Turbo adapters?

I thought it was well documented on the f150 forum that these aren't silencers?

 

[J Ski]

Turbo adapters?

I thought it was well documented on the f150 forum that these aren't silencers?

Turbo adapters are probably made by SPD performance and are slightly larger than stock allowing a drop in exhaust pressure and better flow. $120 for the pair I think. The plastic pieces of junk in the intake tubes are just silencers for the turbos. I took mine out prior to installing my k&n I take system and the turbos sounded a little more whiny but probably placebo. I reinstalled them when I put my k&n system in mostly because they said to leave them in place in the instructions and I hear the turbos even more now. Probably attribute that to the increased airflow. With this cold weather my performance has gone up but of course mpgs are down to about 12-14. I’ve got 35s too though

So plastic ones in intake = silencers

Aftermarket adapters = what tbey claim 21hp and 17 torque

 

[Kwik SC]

Turbo adapters are probably made by SPD performance and are slightly larger than stock allowing a drop in exhaust pressure and better flow. $120 for the pair I think. The plastic pieces of junk in the intake tubes are just silencers for the turbos. I took mine out prior to installing my k&n I take system and the turbos sounded a little more whiny but probably placebo. I reinstalled them when I put my k&n system in mostly because they said to leave them in place in the instructions and I hear the turbos even more now. Probably attribute that to the increased airflow. With this cold weather my performance has gone up but of course mpgs are down to about 12-14. I’ve got 35s too though

So plastic ones in intake = silencers

Aftermarket adapters = what tbey claim 21hp and 17 torque

Before I flashed the tune I ran the truck with just the turbo adapters. I can tell you they work. The tone of the motor became deeper and seat of the pants the truck definitely felt peppier. The problem is they are quite expensive and tedious to replace as the cross-member, front driveshaft and various other items need to be pulled in order to R&R them. Of course I went all of 2 miles before I pulled over and flashed the truck after but, during that time I was impressed with how the truck felt and sounded with just the adapters in place. I also installed a K&N drop in filter instead of an air intake as I didn't feel like advertising to the dealership there are mods on the truck. MPG's are still in the air as I just did these mods on Wednesday and haven't had a chance to get more than 30 miles on the truck. Now I just wanna pull the silencers to see how much of a difference its going to make. The thing really howls @ 20psi lemme tell ya lol

BTW off topic did you have to go with a lift on the 35's? I'm trying to put a bigger tire on the stock 20's and trying to avoid a lift if possible or at least the smallest one that will allow the truck to clear the 35's

 

[J Ski]

Before I flashed the tune I ran the truck with just the turbo adapters. I can tell you they work. The tone of the motor became deeper and seat of the pants the truck definitely felt peppier. The problem is they are quite expensive and tedious to replace as the cross-member, front driveshaft and various other items need to be pulled in order to R&R them. Of course I went all of 2 miles before I pulled over and flashed the truck after but, during that time I was impressed with how the truck felt and sounded with just the adapters in place. I also installed a K&N drop in filter instead of an air intake as I didn't feel like advertising to the dealership there are mods on the truck. MPG's are still in the air as I just did these mods on Wednesday and haven't had a chance to get more than 30 miles on the truck. Now I just wanna pull the silencers to see how much of a difference its going to make. The thing really howls @ 20psi lemme tell ya lol

BTW off topic did you have to go with a lift on the 35's? I'm trying to put a bigger tire on the stock 20's and trying to avoid a lift if possible or at least the smallest one that will allow the truck to clear the 35's

You will just hear the turbos more.

How did you get 20psi? That from the tune? What tune did you go with, I’m looking at 5 star.

And yes, I have a Readylift 3” SST kit. You will need at least 3” in front to clear 35s height wise. Mine are 11.50” wide and just barrrrely rub UCA at full lock. 3/8” wheel spacers will take care of that

 

[Kwik SC]

You will just hear the turbos more.

How did you get 20psi? That from the tune? What tune did you go with, I’m looking at 5 star.

And yes, I have a Readylift 3” SST kit. You will need at least 3” in front to clear 35s height wise. Mine are 11.50” wide and just barrrrely rub UCA at full lock. 3/8” wheel spacers will take care of that

The tune bumps the truck up to 20psi and depending on what stage you go with can be more than that. I went with SSi Tuning and am running his Stage 2 Trump X3 tune. They have an.. interesting reputation but the tune speaks for itself. Drives factory until you get on it. Then its a different more angry truck. Before the tune I had a BoostMax and PedalMax connected to it and it is zero comparison. And the reason i went with SSi Tuning was because the exact mods for the truck in the video below were: colder plugs, 170* tstat, Stage 2 tune, drop in filter and turbo adapters.

Also how big of a tire do you think I can fit without resorting to a lift? Im just looking for a more aggressive stance.

 

[J_82]

Is that your expy in that video?

 

[Kwik SC]

Is that your expy in that video?

Nope. Different SSi customer. I'm hitting the track springtime.

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[07xln]

That’s quite the claims SSi is making. 429hp 610tq. That’s pretty hot for a stock 3.5 bottom end. Not sure what to think about the turbo adapters. Nice gains for the price but seem like a ton of unnecessary work.

Stock I was running around 14psi. With my 93 performance tune from 5 star it bumped it up to 18. It’ll shit and git now

I did a good amount of research before I decided on tuning and never came across SSI. interesting.

 

[Kwik SC]

The turbo adapters cost me $480 to R&R them from the mechanic. They had to heat the studs on the turbos to get the old ones out along with everything else. I'm just glad i didn't try to tackle them myself or i would gotten into a whole mess of trouble with how hard it was to swap out.

I was always iffy about 5 star for the tuning. It felt to me like they were selling canned tunes so i waited until i started seeing on YouTube who was messing with these trucks. Ssi won hands down for me.

Ssi can take the Expedition to 600rwhp if you so desire. Just gotta be willing to listen to their advice about the mods. Shawn the tuner/owner is a crusty old skool tuner but he knows his stuff. He's constantly improving on the tunes and has so many options for tuning its unreal. Hell im about to ask him to have a go at my Lightning as well. Im not trying to advertise for the place but check out their website and Facebook group. Its informative and quite entertaining if nothing else. Lol

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[07xln]

I guess my question is was your tune built on a dyno? Meaning your Expedition on the dyno. Unless your in the shop with your vehicle on the dyno then we're all running canned tunes. Id be super wary about an emailed 600hp tune no matter if I had the supporting mods or not.

Ive looked at the site and its interesting. Lots of info. I see they make tunes for the SCT X4 that I have. I may hit them up for one of their tunes to add to it. I'm not looking for max hp/tq. The chances of me putting my Expy on the track is slim to none. I have a CTSV for that. Its just a family hauler I wanted to squeeze a little more power out of that's all.

Its good to hear from another person on here that's tuned though. Not a lot of us on here

 

[edizzle]

I would seriously question any company that would post this video to their YouTube page!!! LOL, that’s embarrassing! A white boy talking about "dat n***a ain’t got s**t" Wildly unprofessional. We all know here that I don’t mind dropping an F bomb here and there, but come on. You would never find anything like that on my companies web site or social media.

 

[Kwik SC]

I would seriously question any company that would post this video to their YouTube page!!! LOL, that’s embarrassing! A white boy talking about "dat n***a ain’t got s**t" Wildly unprofessional. We all know here that I don’t mind dropping an F bomb here and there, but come on. You would never find anything like that on my companies web site or social media.

As i said in my previous post their reputation is quite interesting and the Facebook group is quite entertaining. Im not looking to defend my purchase OR my choice of tuner. That video you posted up has an explanation behind it one of which I'm not going to go into as its stupid and petty in the tuner world. I didnt post in this thread to go into detailed explanation about the tune or tuner. All i care is that it worked 100x better than the boostmax.

As far as dyno time in my Expy, no it has not seen the dyno, nor does it need to see one for the tune. I bought the JMS Boostmax and Pedalmax cause i saw a few dyno runs and video showing a 90hp increase. Turned out to be baseless claims and to top it off downright dangerous when it fails on you in -1 weather.

And you know as well as i do owning a high performance vehicle a canned tune is nothing more than some timing added and rev limiter change to the stock pcm. This is not that. Not even close.

Btw guys there are MANY tuners out there for these trucks. Dont need to rely on just 5 star for a tune.

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